irc advanced film division general note irc reserves the right to make changes in product speci?cation without notice or liability. all information is subject to ircs own data and is considered accurate at time of going to print. a subsidiary of tt electronics plc ? corpus christi texas 78411 usa ? irc advanced film division telephone: 361 992 7900 ? facsimile: 361 992 3377 ? email: afdsales@irctt.com ? website: www.irctt.com series issue october 2006 pat- w high frequency surface mount attenuators pat- w ? 10ghz operation ? 50ppm/c absolute tcr ? 50 ? impedance available in 2 chip sizes available ? wrap-around 90/10 sn/pb or 100% sn terminations 42 test condition attenuation impedance 0 to 10db 16, 20db short time over load 2.5 x rated voltage, 5 sec 0.01db 0.02db 0.2% load life 1000 hours, 70c 0.02db 0.04db 0.5% moisture resistance 1000 hours, 60c, 95% rh 0.02db 0.04db 0.5% temperature cycle 5 cycles, 125c high, -55c low 0.01db 0.02db 0.2% resistance to solder heat 260c, 10 sec. 0.01db 0.02db 0.2% solderability 235c, 3 sec >95% coverage insulation resistance 500v, 1 minute >1000m ? pat3042 pat4556 impedance 50 ? tcr 50ppm/c attenuation (db) 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 16, 20 power rating @ 70c 250mw 500mw vswr dc to 2ghz = 1.1 2ghz to 5ghz = 1.2 5ghz to 10ghz = 1.3 operating temperature range -55c to +125c terminations 90/10 sn/pb or 100% sn electrical data the pat-w series high performance chip attenuator provides excel- lent high frequency performance at power ratings up to 250mw. the wrap-around construction provides reliable low cost, surface mount assembly. long term operational stability is achieved from the thin ?lm construction. typical uses include applications in medical, industrial, and communications. attenuation value attenuation tolerance code dc to 2ghz 2ghz to 5ghz 5ghz to 10ghz 0db a +0.1/ -0db +0.2/ -0db +0.4/ -0db 1 to 10db a 0.1db 0.2db 0.4db b 0.2db 0.3db 0.5db 16, 20db b 0.2db 0.3db 0.5db attenuation tolerance data environmental data sheet 1 of 3
irc advanced film division ? irc advanced film division ? corpus christi texas 78411 usa telephone: 361 992 7900 ? facsimile: 361 992 3377 ? email: afdsales@irctt.com ? website: www.irctt.com series issue october 2006 pat- w 43 sheet 2 of 2 high frequency surface mount attenuators physical data pre?x hfr - pat3042w - 50r0 - 3 a model pat3042w = surface mount attenuator with 90/10 sn/pb terminations pat3042wlf = surface mount attenuator with 100% sn terminations pat4546w = surface mount attenuator with 90/10 terminations pat4546wlf = surface mount attenuator with 100% sn terminations impedance 50r0 = 50 7 attenuation 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 16, 20db attenuation tolerance a, b ordering data dimensions (mm) 0db 1db 2 to 3db 4 to 6db 7 to 10db 16, 20db l2 4.20 0.20 0.30 0.20 0.60 0.20 0.90 0.20 1.80 0.20 l1 --- 1.90 0.20 1.75 0.20 1.60 0.20 w1 0.30 0.15 0.40 0.15 w2 0.85 0.10 0.65 0.1 l 4.20 0.20 w 3.02 0.20 t 0.80 0.15 l l1 l2 l1 3 4 6 5 dimensions (mm) 0db 1to10db, 16db, 20db w1 0.06 0.10 0.40 0.15 w2 0.64 0.10 1.3 0.1 w3 0.60 0.10 l 5.60 0.20 w 4.50 0.20 t 0.80 0.15 6 5 bottom view 1 2 bottom view 1 2 1, 2: input and output terminals 3: electrode (surface soldering and lead-free possible) 4: covering resin 5: alumina substr ate 6: thin ?lm resistor t t 3 4 pat3042 pat4556 w w1 w1 w2 3 l w w1 w1 w2 0 1 w3 w3 % of rated power 25 70 125 0 60 100 power derating curve ambient temperature (c)
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